public class PC {

    CPU cpu;

    HardDisk HD;

    void setCPU(CPU cpu) {

        this.cpu = cpu;

    }

     void setHardDisk(HardDisk HD) {

        this.HD = HD;

    }

    void show(){

       System.out.println("CPU速度:"+cpu.getSpeed());

       System.out.println("硬盘容量:"+HD.getAmount());

    }

}
